The investigations were carried out in accordance with the General Data Protection Regulation (Regulation (EU) 2016/679 and Directive 95/46/EC) and the French data protection law (Law 78–17 on 06/01/1978 and Décret 2019–536 on 29/05/2019). Informed consent to disclosure of information relevant to this publication was obtained from the three patients confirmed with 2019-nCoV infection.